From: Eero Saynatkari <ruby-ml@...>
Date: 2009-12-23T04:24:32+09:00
Subject: [ruby-core:27291] Re: select!

Excerpts from rue's Private Feed: evanphx's message of Tue Dec 22 21:11:57 +0200 2009:
> 
> On Dec 20, 2009, at 5:58 PM, Yukihiro Matsumoto wrote:
> 
> > Hi,
> > 
> > In message "Re: [ruby-core:27242] select!"
> >    on Sun, 20 Dec 2009 13:22:11 +0900, Roger Pack <rogerdpack@gmail.com> writes:
> > 
> > |Is there any reason there's no select!
> > 
> > Enumerables cannot have bang method, since they are not always
> > mutable.  The reason we don't have Array#select! is that I feel the
> > word select means picking up elements, not removing non-selecting
> > elements.  But I once felt same way to map! and (English speaking)
> > people persuaded me, so same thing could happen on select! as well.
> 
> Array#prune is probably a better verb than #select!. #prune implies changing
> the receiver into something by picking out what you want.

Array#reject, #reject!

These are almost always what are actually wanted when
trying to use the nonexistent #select!.


--
Magic is insufficiently advanced technology.